From e0fa49315a19840403d3a7ffa467f09b9ab3ff13 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=91=A3=E6=B2=85=E9=91=AB?= <yuanxin.me@gmail.com>
Date: Sat, 9 Mar 2019 01:04:54 +0800
Subject: [PATCH] Fix examples/tables variable "previous" is null when select
 text and delete all (#2638)

---
 examples/tables/index.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/examples/tables/index.js b/examples/tables/index.js
index d9a437f46..619934aba 100644
--- a/examples/tables/index.js
+++ b/examples/tables/index.js
@@ -163,6 +163,11 @@ class Tables extends React.Component {
 
     if (isCollapsed && start.isAtStartOfNode(startNode)) {
       const previous = document.getPreviousText(startNode.key)
+
+      if (!previous) {
+        return next()
+      }
+
       const prevBlock = document.getClosestBlock(previous.key)
 
       if (prevBlock.type === 'table-cell') {